they are still unarmed guard and dzhokhar tsarnaev is not able to speak because of a serious next wound but he is cooperating with investigators by either nodding or writing. the 19-year-old is claiming his older brother was the driving force behind last week's deadly bombings and that no international terrorist groups were behind the deadly plot. >> i said the two people committing these vicious attacks are either dead or arrested and i still believe that. >> reporter: now yesterday a judge was brought to his hospital bed to formally -- formerly charge the suspect. he has charged that could lead to the death penalty, and prosecutors can add to that long list of charges. shawn collier, the 26-year-old was shot during a violent standoff and vice-president joseph biden and his wife will be attending the funerals. >>> the department has increased patrols on downtown streets at transit centers, sporting events and other potential terrorist targets. as reported, there soon could be cameras on market street but one of the best tools are the eyes and ears of the public and officers are urging